Watthaus Solar
Watthaus Solar
Watthaus Solar
Our
Vision
Empowering a sustainable future by connecting land, capital, and innovation in clean energy.
Our
Mission
To accelerate global renewable projects through strategic insight, collaboration, and seamless execution.
Energy Engineered Forward
Watthaus Strategy bridges the gap between real estate and renewable energy to accelerate impactful energy development. We partner with landowners, investors, and developers to unlock high-potential land and rooftops, delivering strategic guidance across every stage from feasibility and due diligence to PPA structuring and execution.
Solar Panels Installed
0
K+
Tons Carbon Reduced
0
K+
Happy Clients
0
+
Our Services
We source, assess, and secure viable solar farm land, ensuring strong, data-driven, and market-aligned opportunities.
Identify. Secure. De-risk.
Watthaus Strategy sources, evaluates, and secures high-quality land for utility-scale solar farm development. We manage the full engagement and due-diligence process to ensure each project begins with a bankable foundation.
Our Land Acquisition services include:
Outcome:
Bankable, development-ready land secured with strong landowner relationships and minimal early-stage risk.
+64 21 051 5211
Watthaus Strategy offers early-stage engineering, delivering layouts and yield studies for informed solar investment decisions.
Design. Optimise. De-risk.
We deliver robust engineering solutions that ensure every solar project is feasible, efficient, and compliant. Our engineering team provides full technical support from concept design to grid connection.
Our Engineering services include:
Outcome:
Optimised, compliant, and technically validated designs that reduce risk and maximise long-term performance.
+64 21 051 5211
We ensure secure, compliant, investment ready projects with strategic advice and expertly drafted legal documentation.
Source. Secure. Deliver.
As a Master EPC coordinator, Watthaus Strategy manages the full procurement process, ensuring access to Tier-1 equipment, cost certainty, and reliable delivery timelines.
Our Procurement services include:
Outcome:
High-quality equipment at competitive prices, delivered with precision and supply-chain certainty.
+64 21 051 5211
We ensure secure, compliant, investment ready projects with strategic advice and expertly drafted legal documentation.
Execute. Commission. Energise.
We deliver full construction management for commercial and utility-scale solar farms, ensuring safe, efficient, and high-quality project execution.
Our Construction services include:
Outcome:
Predictable timelines, consistent build quality, and smooth energisation into long-term operation.
+64 21 051 5211
2025
OUR PARTNERS
We’re proud to collaborate with leading organisations that share our commitment to innovation, sustainability, and responsible energy development. Our partnerships strengthen our ability to deliver value, stay ahead of industry trends, and contribute to a smarter, cleaner global energy future.
Green Footprints We've Made
- Partnership Announcement |
Watthaus Strategy Partners with The WORX Real Estate
Watthaus Strategy partners with The WORX Real Estate to merge solar innovation and property expertise, creating sustainable, high-value assets across New Zealand.
- Surabaya, Indonesia
Community Based Solar Energy
A shared solar farm project designed to serve multiple households, empowering local communities with accessible, renewable energy.
- Yogyakarta, Indonesia
Commercial Solar Power Plant
A large-scale solar installation powering commercial facilities, significantly reducing energy costs and environmental impact.
AUCKLAND
RESIDENTIAL
PROJECT OVERVIEW
Installed across a multi-level residential property in Auckland, this project required purpose engineered scaffolding access, split level panel placement across two roof pitches and orientations, and careful electrical penetrations through finished living room spaces.
The system pairs 22 high efficiency tier 1 JA Solar Panels, with a Sigen Energy Controller and a 20kWh SigenStor battery stack, giving the homeowner genuine energy independence, time of use optimisation, and grid-outage resilience from day one.
Annual
Production
13,765kWh
Estimated
ROI
15.9% pa
CO₂e
1.4t paOperating Life
30+ yearsWASTE AUDIT
Watthaus Strategy’s commitment to responsible site management, through disciplined packaging removal, material segregation, and recycling partnerships, resulted in only 1% of project waste going to landfill.
107kg
RECYCLED
Packaging, cable offcuts, plastic wrap, and foam protectors
1kg
LANDFILL
Contaminated and mixed materials
99%
DIVERTED FROM
LANDFILL
LANDFILL
TOTIKA
Certification in progress
Certification in progress
SEANZ
Membership in progress
Membership in progress
RESIDENTIAL SOLAR,
DONE RIGHT.
ENERGY ENGINEERED FORWARD
At Watthaus Strategy, we bring a commercial grade mindset to every residential project. Our clients get solar systems designed for long-term performance, specified with bankable hardware, and installed by a team that prioritizes quality work over anything else.
- QUALITY HARDWARE: The JA Solar JAM54D40 series and Sigenergy SigenStor platform are specified for long term reliability and warranty depth, not margin.
- BATTERY - FIRST THINKING: With 20kWh of storage, this system is engineered to maximize self-consumption, deliver backup resilience, and take full advantage of time of use tariff structures.
- WHOLE HOME APPROACH: We assess the homeowners existing electrical infrastructure, future EV charging requirements, and consumption profile to ensure the system delivers genuine measurable lifetime value.
DESIGN CONSIDERATIONS
Multi-level residential installs demand more than standard planning. Roof access, structural loading, electrical routing, and finished interior aesthetics all require careful coordination well before a single panel goes up.
STRUCTURAL ACCESS
Purpose-built full scaffolding was staged across the full perimeter.
ELECTRICAL ROUTING
Cable runs were planned to avoid finished living spaces.
BATTERY INTEGRATION
The 20kWh SigenStor battery stack provides meaningful overnight coverage and resilience.
ARCHITECTURE AND AESTHETICS
Panel layout was designed to sit cleanly within each roof plane and present well from street level.
SAFETY AND SITE MANAGEMENT
The occupied home remained fully habitable throughout the installation process.
LONG-TERM PERFORMANCE
System monitoring is delivered via the Sigen app with real-time data visibility.
www.watthausstrategy.co.nz
inquiries@watthausstrategy.co.nz
Auckland, New Zealand
inquiries@watthausstrategy.co.nz
Auckland, New Zealand
Watthaus Strategy Partners with The WORX Real Estate
We are delighted to announce a new partnership between Watthaus Strategy Ltd and The WORX Real Estate 🏠
By combining Worx’s proven expertise in property sales, management, and investment with our specialization in solar and energy strategy ☀️, this collaboration unlocks new opportunities for homeowners and landowners to future-proof their assets, strengthen long-term returns, and contribute to New Zealand’s transition to clean energy.
Powering Real Estate with Renewable Energy
Our partnership introduces a new era where property value meets sustainability. Together, we’re turning rooftops and open lands into productive, income-generating solar assets for property owners across New Zealand.
- Unlock new income from underused roof and land spaces
- Increase long-term property value through solar integration
- Support New Zealand’s clean energy transition
- Create sustainable investment opportunities for future generations
“𝙊𝙪𝙧 𝙥𝙖𝙧𝙩𝙣𝙚𝙧𝙨𝙝𝙞𝙥 𝙬𝙞𝙩𝙝 𝙒𝙖𝙩𝙩𝙝𝙖𝙪𝙨 𝙎𝙩𝙧𝙖𝙩𝙚𝙜𝙮 𝙢𝙖𝙠𝙚𝙨 𝙥𝙚𝙧𝙛𝙚𝙘𝙩 𝙨𝙚𝙣𝙨𝙚. 𝘽𝙮 𝙘𝙤𝙢𝙗𝙞𝙣𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙧𝙚𝙣𝙚𝙬𝙖𝙗𝙡𝙚 𝙚𝙣𝙚𝙧𝙜𝙮 𝙚𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚 𝙬𝙞𝙩𝙝 𝙤𝙪𝙧 𝙛𝙤𝙘𝙪𝙨 𝙤𝙣 𝙨𝙪𝙥𝙥𝙤𝙧𝙩𝙞𝙣𝙜 𝙡𝙖𝙣𝙙𝙡𝙤𝙧𝙙𝙨, 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧𝙨, 𝙖𝙣𝙙 𝙝𝙤𝙢𝙚𝙤𝙬𝙣𝙚𝙧𝙨, 𝙬𝙚 𝙘𝙖𝙣 𝙩𝙪𝙧𝙣 𝙪𝙣𝙪𝙨𝙚𝙙 𝙧𝙤𝙤𝙛 𝙨𝙥𝙖𝙘𝙚 𝙞𝙣𝙩𝙤 𝙧𝙚𝙖𝙡 𝙤𝙥𝙥𝙤𝙧𝙩𝙪𝙣𝙞𝙩𝙞𝙚𝙨. 𝙏𝙝𝙞𝙨 𝙞𝙨𝙣’𝙩 𝙟𝙪𝙨𝙩 𝙖𝙗𝙤𝙪𝙩 𝙩𝙤𝙙𝙖𝙮’𝙨 𝙧𝙚𝙩𝙪𝙧𝙣𝙨, 𝙞𝙩’𝙨 𝙖𝙗𝙤𝙪𝙩 𝙘𝙧𝙚𝙖𝙩𝙞𝙣𝙜 𝙨𝙪𝙨𝙩𝙖𝙞𝙣𝙖𝙗𝙡𝙚, 𝙡𝙤𝙣𝙜-𝙩𝙚𝙧𝙢 𝙫𝙖𝙡𝙪𝙚 𝙛𝙤𝙧 𝙩𝙝𝙚 𝙛𝙪𝙩𝙪𝙧𝙚.”
This partnership represents a powerful step forward — integrating real estate and renewable energy to deliver lasting impact. Together, Watthaus and Worx will identify viable rooftops and properties for solar integration, helping clients enhance property value while reducing carbon footprints.
We’re excited to work alongside Tim and his dedicated team at The WORX Real Estate to pioneer the next chapter of sustainable property development in New Zealand.
Start Your Solar Journey Today
Excellence in Solar & Wind
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
+(234) 567-8912